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Large-area flexible piezoelectric spontaneous-heating non-woven fabric and manufacturing method thereof

A flexible piezoelectric and non-woven technology, used in non-woven fabrics, textiles and papermaking, etc., can solve problems such as the inability to meet a wide range of flexible use requirements, and achieve the effects of heating safety, enhanced circulation, and low current.

Inactive Publication Date: 2015-12-02
WUHAN TEXTILE UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The piezoelectric polymer fibers containing metal cores in the above invention patents are used alone as sensors or drivers or energy harvesters, which cannot meet the requirements of a wide range of flexible use.

Method used

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  • Large-area flexible piezoelectric spontaneous-heating non-woven fabric and manufacturing method thereof
  • Large-area flexible piezoelectric spontaneous-heating non-woven fabric and manufacturing method thereof
  • Large-area flexible piezoelectric spontaneous-heating non-woven fabric and manufacturing method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] A method for preparing a large-area flexible piezoelectric self-heating non-woven fabric, comprising the following steps:

[0025] 1) According to PET (polyethylene terephthalate) masterbatch (ie polymer masterbatch), BaTiO 3 , carbon nanotubes, nano carbon powder (conductive nano carbon powder) mass ratio of 80:5:10:5, select polymer masterbatch (ie PET), piezoelectric ceramic powder (BaTiO 3 ), one-dimensional conductive material (carbon nanotube), conductive powder (nano carbon powder);

[0026] 2) Piezoelectric ceramic powder BaTiO 3 , one-dimensional conductive material, conductive powder and PET (polyethylene terephthalate) masterbatch are blended in a blender to make them evenly mixed to obtain a mixed material; put the evenly mixed mixed material into a twin-screw The extruder is melted and extruded and drawn at a uniform speed to obtain blended fibers (ie piezoelectric ceramic powder / one-dimensional conductive material / conductive powder / masterbatch blended fi...

Embodiment 2

[0030] A method for preparing a large-area flexible piezoelectric self-heating non-woven fabric, comprising the following steps:

[0031] 1) According to PET (polyethylene terephthalate) masterbatch (ie polymer masterbatch), PbZrO 3 , silver nanowires, nano-graphene powder mass ratio of 90:3:5:2, select polymer masterbatch, piezoelectric ceramic powder (PbZrO 3 ) and one-dimensional conductive materials (silver nanowires), conductive powders (graphene nanopowders);

[0032] 2) Piezoelectric ceramic powder PbZrO 3 , one-dimensional conductive material, conductive powder and PET (polyethylene terephthalate) masterbatch are blended in a blender to make them evenly mixed to obtain a mixed material; put the evenly mixed mixed material into a twin-screw The extruder is melted and extruded and drawn at a constant speed to obtain a blended fiber (ie piezoelectric ceramic powder / one-dimensional conductive material / conductive powder / masterbatch blended fiber); then the obtained blende...

Embodiment 3

[0036] A method for preparing a large-area flexible piezoelectric self-heating non-woven fabric, comprising the following steps:

[0037] 1) According to PET (polyethylene terephthalate) masterbatch (ie polymer masterbatch), PbTiO 3 , graphene nanoribbon, nano carbon powder (i.e. conductive nano carbon powder) mass ratio of 85:10:5:0, select polymer masterbatch, piezoelectric ceramic powder (PbTiO 3 ) and one-dimensional conductive material (graphene nanobelt) [the amount of conductive powder is 0];

[0038] 2) PbTiO 3 , Graphene nanoribbons and PET (polyethylene terephthalate) masterbatches are blended in a blender to make them evenly mixed to obtain a mixed material; put the evenly mixed mixed material into a twin-screw extruder Melt extrusion and uniform drafting to obtain blended fibers (ie piezoelectric ceramic powder / one-dimensional conductive material / conductive powder / masterbatch blended fiber); then the obtained blended fiber is granulated with a granulator, and the...

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Abstract

The invention relates to large-area flexible piezoelectric spontaneous-heating non-woven fabric and a manufacturing method thereof, and belongs to the field of functional textile materials. The piezoelectric spontaneous-heating non-woven fabric comprises piezoelectric spontaneous-heating fibers prepared from polymer master batch, piezoelectric ceramic powder, a one-dimensional conducting material and conducting powder as raw materials, and the flexible piezoelectric spontaneous-heating non-woven fabric of a three-dimensional structure is obtained through a certain technology. As the fibers of the flexible non-woven fabric comprise the piezoelectric ceramic powder, the one-dimensional conducting material, the conducting powder and the like, the piezoelectric effect of the non-woven fabric under external mechanical pressure is used for generating potential difference, and weak currents are generated through the conducting fibers and the conducting powder in the fibers to achieve spontaneous-heating of the non-woven fabric. In the actual use process, an energy storage element and a temperature control element can be additionally arranged in the fabric, so that redundant electric energy is effectively stored. The large-area flexible piezoelectric spontaneous-heating non-woven fabric can be applied to multifunctional textile fields such as heat preservation, energy conservation and intelligent sensing.

Description

technical field [0001] The invention relates to a large-area flexible piezoelectric self-heating non-woven fabric and a preparation method thereof, belonging to the field of functional textile materials. Background technique [0002] Self-heating fabric uses the special physical and chemical properties of the fabric itself to generate heat without external heating, and can play the role of keeping out the cold, health care and treatment in cold weather. Self-heating fabrics can be made into heating clothes, heating insoles, heating socks, heating mattresses, heating car seat cushions, etc., which have the characteristics of low-carbon environmental protection, energy saving and convenience, can significantly improve the quality of life of residents, and have broad market economic value. [0003] Since self-heating fabrics do not require external heating conditions, the development of self-heating fabrics is currently mainly based on far-infrared heating and moisture absorpti...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D04H1/4382
Inventor 王栋陈佳慧刘琼珍陶义飞王博刘轲李沐芳
Owner WUHAN TEXTILE UNIV
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